ALTHOUGH THERE ARE DIFFERENCES IN THE GUIDANCE...THEY DO AGREE THAT BEGINNING ON SUN/D6...A LARGER SCALE TROUGH WILL DEVELOP ACROSS THE WRN STATES...WITH RIDGING DEVELOPING AHEAD OF THIS TROUGH OVER THE PLAINS STATES. THIS WOULD PORTEND A GREATER SEVERE THREAT...WITH THE POSSIBILITY OF 3-4 CONSECUTIVE DAYS OF SIGNIFICANT SEVERE DEVELOPING FROM THE PLAINS STATES INTO THE MIDWEST BEGINNING ON MON/D7 INTO TUE/D8 AND LIKELY EXTENDING INTO D9. IF TREND IN MODEL GUIDANCE PERSISTS...SEVERE RISK AREAS WILL LIKELY BE FORTHCOMING IN SUBSEQUENT D4-8 OUTLOOKS.